Form 4 Filing for GATX CORP

This filing details a transaction by James B. Ream, a director at GATX CORP, on April 24, 2026. Ream acquired 731 shares of common stock under the company's annual equity retainer program, which issues restricted stock units (RSUs). These RSUs will vest in full on the date of the first annual shareholders' meeting following the grant date, provided Ream continues his service. He has elected to defer the receipt of the shares issuable upon settlement of the RSUs, as per the Amended and Restated GATX Corporation Directors' Voluntary Deferred Fee Plan. The acquisition was valued at a price per share of $0.00. Following this transaction, Ream holds 49,137 shares. The filing is Form 4, indicating a change in beneficial ownership.